(3GddDdD hGdeQLGf ajeG GJab Ydjg GdTjNGf s - (3LeYI eMeO aDGO YHO GdHGb (B- (3YHO GdSJGQ CHh ZOI js ((3GdchjJ s (3GdeWHYI GdYUQjI s, 1977)
Keywords: (3GdSjQI hGdbQGfs